Ko te whanaungatanga i waenga i te kawe wera o te rauemi whakamarumaru ko λ=k/(ρ×c), ko k te kawe wera o te rauemi, ko ρ te mātotoru, ā, ko c te wera motuhake.
1. Te ariā o te kawe wera
I roto i ngā rauemi whakamahana, ko te kawe wera e pā ana ki te kaha o te wera mō ia wāhanga horahanga o te rauemi ki te haere mā roto i te rauemi mō ia wāhanga wā, arā, ko te tere whakawhiti wera. I te nuinga o te wā ka whakaatuhia mā te rere wera mō ia wāhanga horahanga mō ia wāhanga wā ina ko te rerekētanga pāmahana he 1K, ā, ko te wāhanga he W/(m·K). Ko te nui o te kawe wera e whakawhirinaki ana ki te kawe wera me te rerekētanga pāmahana o te rauemi.
2. Te tātai tatau mō te kawe wera
E pā ana te kawe wera o te rauemi whakamarumaru ki te mātotoru, te wera motuhake me te kawe wera o te rauemi, ā, ko te whanaungatanga i waenganui i a rāua ko: λ=k/(ρ×c).
I roto i ēnei, ko te k te tohu o te kawe wera o te rauemi, ko te waeine ko W/(m·K); ko te ρ te tohu o te mātotoru, ko te waeine ko kg/m³; ko te c te tohu o te wera motuhake, ko te waeine ko J/(kg·K). E kī ana tēnei tātai ki a tātou, ki te hiahia tātou ki te whakaiti i te kawe wera o te rauemi whakamahana, me whakaiti tātou i te mātotoru, te kaha wera motuhake me te kawe wera o te rauemi.
3. Ngā āhuatanga e pā ana ki te kawe wera
He maha ngā āhuatanga e pāngia ana e te kawe wera o te rauemi whakamarumaru, pērā i te pāmahana, ngā āhuatanga hanganga o te rauemi (pērā i te hanganga tioata), te hanganga matū o te rauemi, te taunekeneke o te rauemi, me ētahi atu. Hei tāpiri, ka pāngia hoki te kawe wera e te mātotoru, te nui o te wai, te porosity me ētahi atu tawhā o te rauemi whakamarumaru.
Wā tuku: Hanuere-20-2025
